K20A - Uncategorized Fantini Cosmi - Free user manual and instructions

Product Type	Self-Adjusting Heating Cable for Pipe Freeze Protection
Model	K20A (K20A25, K20A50, K20A100, K20A500)
Power Supply	230V-50Hz
Power Output at 10°C	20 W/m
Available Cable Lengths	25 m, 50 m, 100 m, 500 m
Maximum Heating Circuit Length	170 m
Minimum Installation Temperature	-35°C
Maximum Room Temperature (Powered)	65°C
Maximum Room Temperature (Unpowered)	80°C
Minimum Bending Radius	25 mm
Cable Dimensions (W x H)	12.6 x 4.8 mm
Conductor Cross-Section	1.25 mm²
Sheath Material (Inner)	Polyolefin insulating
Sheath Material (Middle)	Braided copper
Sheath Material (Outer)	Modified polyolefin
Self-Adjusting Feature	Automatically varies heat output without thermostat
Recommended Thermostat	C01A, C03A, or L03BM1A
Protection Rating (Junction Box KBE3A)	IP54
Standards	CSTB, CE
Accessories	Junction box KBE3A, fixing tapes (K50/K50AL), sealing kit KIT2A, labels KFAN, support foot KSUPP-A
Application	Maintaining temperature of liquids inside pipes

Frequently Asked Questions - K20A Fantini Cosmi

What is the Fantini Cosmi K20A heating cable used for?

The K20A is a self-adjusting heating cable designed to maintain the temperature of liquids inside pipes, preventing freezing or keeping them at a desired temperature.

Can I cut the K20A cable to a custom length?

Yes, the cable can be cut to the desired length. The total power depends on the length and the perceived temperature. Ensure the end is properly sealed with the KIT2A kit.

How does the self-adjusting feature work?

The cable contains conductors insulated by polymers that vary their resistance based on temperature. As temperature drops, resistance decreases and heat output increases, and vice versa, optimizing energy consumption without a thermostat.

What thermostat should I use with the K20A cable?

Recommended thermostats are C01A, C03A, or L03BM1A. They disconnect the cable when the fluid reaches the desired temperature, minimizing energy use.

What is the maximum length of the heating circuit from the supply point?

For the K20A series, the maximum length is 170 meters.

What are the temperature limits for installation and operation?

Minimum installation temperature: -35°C. Maximum room temperature when powered: 65°C. Maximum room temperature when not powered: 80°C.

How do I install the cable on a pipe?

Secure the cable along the pipe using fixing tape K50 for metal pipes or K50AL for plastic pipes. Minimum bending radius is 25 mm. It can be wound in overlapping spirals as it limits power at overlap points.

What accessories are needed to terminate the cable?

Use the KIT2A sealing kit which includes a cable gland union, heat-shrink sheaths for insulation, and ensure the two conductors are never in contact with each other. The junction box KBE3A is required for electrical connections.

Is it safe to overlap the cable?

Yes, the cable can be overlapped in spirals. The self-adjusting feature reduces power at overlapping points, preventing overheating.

What certifications does the K20A cable have?

The cable is certified by CSTB (France) and CE marked, ensuring compliance with European safety and performance standards.

USER MANUAL K20A Fantini Cosmi

■ Suitable for maintaining the temperature of liquids inside pipes
■ Power delivered \~20, \~30, \~40 W/m at 10°C
■ Optimisation of energy consumption thanks to the self-adjusting feature of the cable

Close-up of a black cable with exposed steel and two metal leads (no text or symbols visible)

CODE Cable	length	Power at 10°C	Minimum installation room temperature	Maximum room temperature powered	Maximum room temperature not powered	Maximum length of the heating circuit from the supply point
K20A25 25 m 20 W/m -35 °C 65 °C 80 °C			170 m
K20A50 50 m 20 W/m -35 °C 65 °C 80 °C			170 m
K20A100 100 m 20 W/m -35 °C 65 °C 80 °C			170 m
K20A500 500 m 20 W/m -35 °C 65 °C 80 °C			170 m
K30A25 25 m 30 W/m -35 °C 65 °C 80 °C			140 m
K30A50 50 m 30 W/m -35 °C 65 °C 80 °C			140 m
K30A100 100 m 30 W/m -35 °C 65 °C 80 °C			140 m
K40A25 25 m 40 W/m -35 °C 65 °C 80 °C			120 m
K40A50 50 m 40 W/m -35 °C 65 °C 80 °C			120 m
K40A100 100 m 40 W/m -35 °C 65 °C 80 °C			120 m

HOMOLOGATION AND STANDARDS

CSTB

CE

OPERATION

■ The heating cables automatically vary the heat emission without control thermostats being used;
■ They consist of conductors insulated by polymers, which vary their resistance according to the temperature which they are subjected to.

INSTALLATION

■ The cable can be cut to the desired length;
■ The total power depends on the length of the heating cable and the perceived temperature;
■ The cable is secured along the pipe with the relevant fixing tape K50 for steel pipes or K50AL for plastic pipes;
■ Minimum bending radius: 25 mm;
■ Use a C01A, C03A or L03BM1A type thermostat to disconnect the heating cable when the temperature of the fluid is at the desired temperature, thereby minimising energy consumption;
■ The cable heats up along its entire length and can be wound in overlapping spirals as it will limit its power at the overlapping points;
■ The two conductors must be kept insulated at the end of the cable using the kit to seal the ends code KIT2A and must never be in contact with each other;
■ It is advisable to apply an insulating coating over the heating cable.

Simple line drawing of a cylindrical object with curved bands, no text or symbols present

ELECTRICAL FEATURES

Power supply 230V-50Hz

Tolerance -0/+5 W

Power delivered

K20A

20 W/m at 10°C

K30A

30 W/m at 10°C

K40A

40 W/m at 10°C

Pipe temperature °C

CALIBRATION OF THE PROTECTION CIRCUIT

CODE ROOM	TEMPERATURE	CALIBRATION BASED ON MAXIMUM CABLE LENGTH
		16A 20A 32A
Series K20A	-20 °C 105 130 170
	0 °C 150 170 -
	10 °C	170 -	-
Series K30A	-20 °C 75	90	140
	0 °C 97	120 -
	10 °C	115 140 -
Serie K40A	-20 °C 55	70	110
	0 °C 70	90	120
	10 °C	80	100 -

GENERAL FEATURES

Cable composition ■ 1.25 mm ^2 conductors	■ Self-adjusting conductive core■ Polyolefin insulating sheath■ Braided copper sheath■ Outer sheath in modified polyolefin
Cable length K20A25	25 mK20A50 50 mK20A100 100 mK20A500 500 mK30A25 25 mK30A50 50 mK30A100 100 mK40A25 25 mK40A50 50 mK40A100 100 m
Minimum installation room temperature -35 °C
Maximum room temperature powered 65 °C
Maximum room temperature not powered 80 °C
Minimum storage room temperature -20 ÷ -25°C
Cable dimensions 12.6 x 4.8 mm series K20A	14.6 x 4.8 mm series K30A-K40A

ACCESSORIES

KBE3A

JUNCTION BOX IN INSULATING MATERIAL

■ Protection rating IP54 with 5 4mm ^2 terminals;
■ 7 PG16 threaded holes closed by a breakable diaphragm;
■ Maximum temperature withstood is 80°C.

KSUPP-A

SUPPORT FOOT FOR THE KBE3A JUNCTION BOX

■ It allows the cable to pass through the protective coating of the pipe and to enter directly into the junction box;
■ It consists of a ∅ 22 L 80 mm pipe with a welded 15x15x60 mm bracket and two clamps;
■ The pipe is in cadmium-plated steel with a Pg16 thread.

K50

FIBERGLASS FIXING TAPE FOR METAL PIPES

■ It does not shrink and preserves its qualities over time;
■ Suitable for temperatures between -30 and +150°C;
■ Roll length 55 m, width 19 mm, recommended fastening range 30 cm.

K50AL

FIXING TAPE FOR PLASTIC PIPES

■ It reflects the heat as it is coated with an aluminium film;
■ Suitable for temperatures between -20 and +130°C;
■ Roll length 50 m, width 50 mm.

KIT2A

KIT TO SEAL TERMINALS FOR SELF-ADJUSTING CABLES (FOR 1 CABLE)

■ To insulate the unpowered end and to prepare the cold tail on the supply side. Composition:
◇ 1 cable gland union PG16 for infeed into the KBE3A box;
◇ 2 ∅ 3mm heat-shrinkable sheaths, 100 mm long for the two copper conductors;
◇ 2 ∅ 12mm heat-shrinkable sheaths, 50 mm long, one at each end.

KFAN

LABELS FOR THE PRESENCE OF A HEATING CABLE

■ Indicate the presence of the heating cable under the insulating coating;
■ To be applied on the coating at intervals of about 5 m; yellow.